WO2024087276A1 - Essuie-glace sans ossature de pulvérisation d'eau à faible résistance au vent - Google Patents

Essuie-glace sans ossature de pulvérisation d'eau à faible résistance au vent Download PDF

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Publication number
WO2024087276A1
WO2024087276A1 PCT/CN2022/133599 CN2022133599W WO2024087276A1 WO 2024087276 A1 WO2024087276 A1 WO 2024087276A1 CN 2022133599 W CN2022133599 W CN 2022133599W WO 2024087276 A1 WO2024087276 A1 WO 2024087276A1
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WO
WIPO (PCT)
Prior art keywords
water
spraying
assembly
hole
wind resistance
Prior art date
Application number
PCT/CN2022/133599
Other languages
English (en)
Chinese (zh)
Inventor
王崎
葛春华
黄松林
刘兴
刘磊
肖鹏
王敦永
杨阳
刘欢
康裕华
Original Assignee
江苏云睿汽车电器系统有限公司
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Publication date
Application filed by 江苏云睿汽车电器系统有限公司 filed Critical 江苏云睿汽车电器系统有限公司
Publication of WO2024087276A1 publication Critical patent/WO2024087276A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/46—Cleaning windscreens, windows or optical devices using liquid; Windscreen washers
    • B60S1/48—Liquid supply therefor
    • B60S1/52—Arrangement of nozzles; Liquid spreading means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/34—Wiper arms; Mountings therefor

Definitions

  • the invention belongs to the technical field of frameless wipers, and in particular relates to a low wind resistance water-spraying frameless wiper.
  • a water spray wiper with a water spray port set on the wiper brush head has emerged on the market.
  • the glass water can be sprayed from the water spray port to the scraping path of the wiper strip as needed, which ensures the scraping effect while saving a lot of glass water.
  • the inventor believes that fixing the water spray assembly on the wiper arm will undoubtedly increase the overall wind resistance of the wiper arm, making it impossible for the water spray boneless wiper to remain stable when the car is driving, and the water spray route of the boneless wiper cannot be ensured. Especially when driving at high speeds, the boneless wiper with high wind resistance may also produce wind noise and vibration.
  • Some water spray boneless wipers will be equipped with a tension spring under the wiper arm to ensure the fit between the wiper rubber strip and the car glass, but this design will undoubtedly increase the wear of the boneless wiper rubber strip and seriously limit the service life of the boneless wiper rubber strip. For this reason, a low wind resistance water spray boneless wiper is designed.
  • the boneless wiper with high wind resistance may also have technical problems such as producing wind noise and jitter.
  • the present disclosure provides a low wind resistance water-spraying frameless wiper, and the specific technical solution is as follows:
  • a low-drag water-spraying boneless wiper comprises a wiper arm and an accessory.
  • the front end of the wiper arm is an assembly part, and the assembly part is provided with a notch;
  • the accessory comprises a bracket and a cover body, an axle frame is provided in the middle of the upper surface of the bracket, and the axle frame is provided with an axle body;
  • the cover body is a shell with an opening at the lower end, and a structural chamber is formed inside the shell.
  • the structural chamber is provided with an axle hole, and the axle hole and the axle body are matched to form a rotating pair, and the distance from the axis of the axle body to the upper surface of the bracket is greater than the distance from the axis of the axle hole to the lower end surface of the cover body; one end of the cover body is provided with an assembly channel extending to the structural chamber, and the inner wall of the structural chamber is provided with an elastic connecting arm, and the elastic connecting arm is connected to a limiting member, and the limiting member extends into the assembly channel, and the outer surface of the cover body is set as a guide slope, and the guide slope is a streamlined curved surface structure, and a guide ridge is provided at the high part of the guide slope, and a water spray component is provided on the outside of the accessory, and the height of the water spray component is lower than the guide ridge.
  • two spring sheets are arranged in parallel, and the two spring sheets are clamped and matched with a rubber strip to form a spring sheet and rubber strip assembly.
  • the bracket is connected to the middle area of the long axis of the spring sheet, a sheath is provided above the two spring sheets, and end covers are provided at both ends of the spring sheet and rubber strip assembly.
  • the outer surfaces of the sheath and the end cover are also configured as streamlined curved structures, and a guide ridge II is provided at the high point of the curved surface.
  • an open groove is provided on the outer side of the spring end, one end of the end cover is an insertion end for use with the spring rubber strip assembly, a spring element avoidance blind hole is provided on the insertion end along the long midline of the end cover, a rubber strip avoidance opening is provided below the spring element avoidance blind hole, cavities are provided on opposite sides of the spring element avoidance blind hole, an elastic paddle extends from the cavity on the side close to the insertion end, the root of the elastic paddle is close to the outer side of the end cover, the end of the elastic paddle is close to the spring element avoidance blind hole, and a window is provided below the cavity.
  • the water spray assembly is provided with a pipeline inside, a water storage chamber is provided in the middle of the pipeline, a removable sealing end cover is provided at the lower part of the water storage chamber, a water spray port I is provided on the sealing end cover, water outlet channels are provided on both sides of the water storage chamber, the water outlet channels are equipped with water spray port II, and the angle between the jet direction of water spray port II and the jet direction of water spray port I is acute.
  • the water spray assembly is provided with a cover shell, and the cover shell is provided with a water spray window.
  • a spherical cavity is provided at the end of the water outlet channel, a ball head is provided in the spherical cavity, the ball head and the spherical cavity form a spherical pair, the ball head is provided with a through hole, and the through hole is connected to the water channel of the water outlet channel.
  • the ball head has a spherical segment structure, a through hole is arranged at the end face of the spherical segment structure, a linear nozzle is arranged at the water outlet end of the through hole, and the size of the narrowest part of the linear nozzle is not larger than the size of the widest part of the through hole.
  • the ball head is provided with a water storage cavity at the end surface of the spherical segment-like structure, and the through hole is provided in the middle of the water storage cavity.
  • the water storage cavity is a through groove, and the groove height of the through groove is not less than the radius of the ball head.
  • the present invention has the following beneficial effects:
  • the low wind resistance water-spraying boneless wiper has a water-spraying assembly connected to the outside of the attachment.
  • the height of the water-spraying assembly is lower than the guide ridge I, so that the wind resistance of the attachment after the water-spraying assembly is greatly reduced due to the existence of the guide ridge I, which reduces the running load of the entire wiper system when the vehicle is driving at high speed, and reduces the wind noise and vibration of the boneless wiper;
  • the low-drag water-spraying boneless wiper has a diversion slope and a diversion ridge I.
  • the pressure between the rubber strip and the car glass can be provided by the wind pressure in front of the car. The faster the speed, the greater the pressure. This effectively reduces the pressure of the wiper arm on the rubber strip when the vehicle is slow or stopped, and extends the service life of the rubber strip. At the same time, because the pressure is small, the rubber strip makes less noise when scraping and reversing, which improves the driving experience of the driver;
  • the low wind resistance water-spraying boneless wiper no longer needs to be provided with a pulling spring under the wiper arm to ensure the pressure between the rubber strip and the car glass by setting the guide slope and the guide ridge I, thus saving production materials such as springs, related design costs, and reducing manufacturing costs;
  • This low-drag water-spraying boneless wiper is equipped with limit pieces and notches. The user only needs to push open the elastic connecting arm to release the connection between the accessory and the wiper arm. It is easy to operate and does not require the user to learn complex assembly knowledge related to the wiper and can be assembled independently, which reduces the requirements for the user and saves the user's cost.
  • FIG1 is a perspective schematic diagram of a low wind resistance water-spraying frameless wiper according to Example 2 of the structure of the present invention
  • FIG2 is a perspective view of a wiper arm and accessories in a ready-to-assemble state according to Embodiment 2 of the present invention
  • FIG3 is a perspective schematic diagram of a bracket of Example 2 in the structure of the present invention.
  • FIG4 is a perspective schematic diagram of a cover body of Example 2 in the structure of the present invention.
  • FIG5 is a three-dimensional schematic diagram of the matching state of the stopper and the notch of Example 2 in the structure of the present invention.
  • FIG6 is a perspective schematic diagram of the combination of the accessory and the water spray assembly of Example 2 in the structure of the present invention.
  • FIG7 is a three-dimensional schematic diagram of the end cover and the spring strip assembly of Example 3 in the structure of the present invention in a state ready for assembly;
  • FIG8 is a perspective schematic diagram of a water spray assembly according to Example 4 of the structure of the present invention.
  • FIG9 is a perspective diagram of the ball head of Example 5 in the structure of the present invention from a first viewing angle
  • FIG. 10 is a three-dimensional schematic diagram of the second viewing angle of the ball head of Example 5 in the structure of the present invention.
  • sealing end cover 3211, water outlet I; 33, water outlet channel; 331, water outlet II; 34, cover shell; 341, water spray window; 35, ball head; 351, through hole; 352, linear nozzle; 353, water storage chamber; 4, shrapnel and rubber strip assembly; 41, shrapnel; 411, opening groove; 42, rubber strip; 5, sheath; 51, guide ridge II; 6, end cover; 61, cavity; 62, elastic pick.
  • connection mentioned in this disclosure, unless otherwise specified, includes direct and indirect “connections”.
  • a low-drag water-spraying boneless wiper comprising a wiper arm 1 and an accessory 2, wherein the front end of the wiper arm 1 is an assembly portion for assembly with the accessory 2, and the assembly portion is provided with a notch 11;
  • the accessory 2 comprises a bracket 21 and a cover body 22, an axle frame 211 is provided in the middle of the upper surface of the bracket 21, the axle frame 211 is provided with a shaft body 2111, the cover body 22 is a shell with an opening at the lower end, a structural chamber is formed inside the shell, the structural chamber is provided with an axial hole 221, the axial hole 221 and the shaft body 2111 are matched to form a rotating pair, and the distance from the axis of the shaft body 2111 to the upper surface of the bracket 21 is greater than the distance from the axis of the axial hole 221 to the cover body 22, one end of the cover body 22 is provided with an assembly channel 222 extending to the structural chamber, the inner wall of
  • the outer surface of the cover body 22 is set as a guide slope 224, the guide slope 224 It is a streamlined curved structure, a guide ridge I2241 is provided at the high point of the guide slope 224, a water spray assembly 3 is provided on the outside of the attachment 2, and the height of the water spray assembly 3 is lower than the guide ridge I2241, so that the wind resistance of the attachment 2 after the water spray assembly 3 is assembled is greatly reduced due to the existence of the guide ridge I2241, thereby reducing the operating load of the entire wiper system when the vehicle is traveling at high speed, reducing the wind noise and shaking of the boneless wiper, and the pressure between the rubber strip 42 and the vehicle glass can be provided by the wind pressure in front of the vehicle.
  • the present embodiment discloses a low wind resistance water-spraying boneless wiper, comprising a wiper arm 1 and an accessory 2, wherein the accessory 2 is a plastic part, the front end of the wiper arm 1 is an assembly part for assembling with the accessory 2, and the assembly part is provided with a notch 11;
  • the accessory 2 comprises a bracket 21 and a cover body 22, an axle frame 211 is provided in the middle of the upper surface of the bracket 21, the axle frame 211 is provided with an axle body 2111, the cover body 22 is a shell body with an opening at the lower end, a structural chamber is formed inside the shell body, the inner wall of the structural chamber is provided with a reinforcing rib, the structural chamber is provided with an axle hole 221, and the axle hole 221 is matched with the axle body 2111
  • the upper surface of the bracket 21 is provided with a limit support column to limit the rotation range of the rotation pair.
  • the distance from the axis of the shaft body 2111 to the upper surface of the bracket 21 is greater than the distance from the axis of the shaft hole 221 to the lower end surface of the cover body 22.
  • One end of the cover body 22 is provided with an assembly channel 222 extending to the structural chamber.
  • the assembly channel 222 is used to match the assembly part.
  • the inner wall of the structural chamber is provided with an elastic connecting arm 223.
  • the elastic connecting arm 223 in this embodiment can be a plastic material integrally formed with the cover body 22.
  • the elastic connecting arm 223 is connected to the cover body 22.
  • the limit piece 2231 is connected to the assembly channel 222 from the side.
  • the outer surface of the cover body 22 is set as a guide slope 224, and the guide slope 224 is a streamlined curved surface structure.
  • a guide ridge I2241 is provided at the high point of 224, and a water spray component 3 is integrally injection-molded on the outer side of the attachment 2.
  • the height of the water spray component 3 is lower than the guide ridge I2241, so that the wind resistance of the attachment 2 after the water spray component 3 is assembled is greatly reduced due to the existence of the guide ridge I2241, thereby reducing the operating load of the entire wiper system when the vehicle is traveling at high speed, reducing the wind noise and shaking of the boneless wiper, and the pressure between the rubber strip 42 and the vehicle glass can be provided by the wind pressure in front of the vehicle.
  • the faster the speed, the greater the pressure which effectively reduces the pressure of the wiper arm 1 on the rubber strip 42 when the vehicle is slow or stopped, and extends the service life of the rubber strip 42.
  • the rubber strip 42 makes less noise when the wiper changes direction and changes surface, thereby improving the driving experience of the driver.
  • the spring piece 41 also includes two parallel spring pieces 41, and the two spring pieces 41 are clamped and matched with the rubber strip 42 to form a spring piece and rubber strip assembly 4.
  • the spring piece 41 is in contact with the rubber strip 42 but not fixed.
  • the bracket 21 is connected to the middle area of the long axis of the spring piece 41.
  • a sheath 5 is provided above the two spring pieces 41.
  • End covers 6 are provided at both ends of the spring piece and rubber strip assembly 4, and the end covers 6 are provided on the spring piece and rubber strip assembly 4.
  • this embodiment discloses a low wind resistance water-spraying boneless wiper.
  • a water spray assembly 3 is connected to the outside of the attachment 2, and the attachment 2 and the water spray assembly 3 are equipped with a snap-fit device, which can be a card slot or an elastic buckle, etc.
  • the outer surface of the sheath 5 and the end cover 6 is also set to a streamlined curved surface structure, and a guide ridge II 51 is provided at the high point of the curved surface.
  • the guide ridge II 51 and the guide ridge I 2241 are matched to further reduce the overall wind resistance of the wiper;
  • the water spray assembly 3 is equipped with a cover shell 34, and the cover shell 34 is provided with a water spray window 341.
  • the glass cleaning liquid is sprayed from the water spray assembly 3 through the water spray window 341 to the vehicle glass.
  • the setting of the cover shell 34 can make the outer surface of the water spray assembly 3 more integrated, reduce airflow interference, and reduce wind resistance.
  • this embodiment discloses a low wind resistance water spray boneless wiper.
  • an opening groove 411 is provided on the outer side of the end of the spring piece 41
  • one end of the end cover 6 is an insertion end for use with the spring piece rubber strip assembly 4
  • a spring piece avoidance blind hole is provided along the long midline of the end cover 6 at the insertion end
  • a rubber strip avoidance opening is provided below the spring piece avoidance blind hole
  • cavities 61 are provided on both sides of the spring piece avoidance blind hole
  • an elastic paddle 62 extends from the cavity 61 on one side close to the insertion end, and the root of the elastic paddle 62 is provided at the bottom of the elastic piece avoidance blind hole.
  • the end of the elastic pick 62 is close to the spring-plate avoidance blind hole.
  • the opening groove 411 and the end of the elastic pick 62 form a contact limit.
  • a window is opened under the cavity 61.
  • this embodiment discloses a low-drag water-spraying boneless wiper.
  • the difference between this embodiment and embodiment 1 is that a pipe 31 is provided inside the water spraying assembly 3.
  • the pipe 31 can be set as a blind pipe or a through pipe according to the position of the water spraying assembly 3.
  • the pipe 31 is matched with the water supply part of the wiper system by a hose. An appropriate position is selected under the wiper arm as needed, and each water spraying assembly 3 is connected with a hose.
  • the pipe 31 of the water spraying assembly 3 at the end is a blind pipe, and the others can be through pipes.
  • a water storage chamber 32 is provided in the middle of the pipe 31, and a detachable sealing end cover 321 is provided at the lower part of the water storage chamber 32.
  • the sealing end cover 321 is provided at the bottom of the water storage chamber 32.
  • the end cover 321 can be used to clean the water storage chamber 32 or install a one-way valve in the water storage chamber 32 as needed.
  • a water spray port I 3211 is provided on the sealing end cover 321.
  • Water outlet channels 33 are provided on both sides of the water storage chamber 32.
  • the water outlet channel 33 is equipped with a water spray port II 331.
  • the angle between the jet direction of the water spray port II 331 and the jet direction of the water spray port I 3211 is an acute angle. Therefore, there is no need to install the water spray assembly 3 in a high position to spray water to the vehicle glass in three directions, thereby further reducing wind resistance.
  • this embodiment discloses a low wind resistance water-spraying boneless wiper.
  • a spherical cavity is provided at the end of the water outlet channel 33, and a ball head 35 is arranged in the spherical cavity.
  • the ball head 35 and the spherical cavity form a spherical pair.
  • the ball head 35 is provided with a through hole 351, and the through hole 351 is connected to the water channel of the water outlet channel 33; the ball head 35 has a spherical segment structure, which can be a standard spherical segment structure or an approximate spherical segment structure with an inclined or curved end face.
  • the setting of the spherical segment structure can form a chamber between the end of the ball head 35 and the spherical cavity to prevent the orifice of the through hole 351 from contacting the inner wall of the spherical chamber when the ball head 35 rotates, so that the through hole 351 is blocked and cannot spray water.
  • the through hole 351 is arranged in the spherical segment structure.
  • a linear nozzle 352 is provided at the water outlet end of the through hole 351.
  • the linear nozzle 352 can be equipped with a nozzle wall, which can effectively prevent the ball head 35 from excessively rotating.
  • the narrowest size of the linear nozzle 352 is not larger than the widest size of the through hole 351, so that when the glass water is sprayed out from the through hole 351, it will collide with the mouth wall of the linear nozzle 352 to produce interference, thereby avoiding the linear nozzle from failing due to an excessively large opening;
  • the ball head 35 is provided with a water storage chamber 353 at the end face of the spherical missing body structure, and the through hole 351 is arranged in the middle of the water storage chamber 353;
  • the water storage chamber 353 is a through groove, and the groove height of the through groove is not less than the radius of the ball head 35, further avoiding that when the ball head 35 rotates, the orifice of the through hole 351 contacts the inner wall of the spherical chamber, and the through hole 351 is blocked and cannot spray water.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Nozzles (AREA)

Abstract

L'invention porte sur un essuie-glace sans ossature de pulvérisation d'eau à faible résistance au vent, comprenant un bras d'essuie-glace (1) et un accessoire (2), l'extrémité avant du bras d'essuie-glace (1) étant pourvue d'un espace (11) ; l'accessoire (2) comprend un support (21) et un corps de recouvrement (22) ; une attache d'arbre (211) est disposée sur le support (21) ; l'attache d'arbre (211) est pourvue d'un corps d'arbre (2111) ; un trou d'arbre (221) est formé à l'intérieur du corps de recouvrement (22) ; le trou d'arbre (221) et le corps d'arbre (2111) correspondent l'un à l'autre pour former une paire rotative ; la distance de l'axe du corps d'arbre (2111) à la surface supérieure du support (21) est supérieure à la distance de l'axe du trou d'arbre (221) à la face d'extrémité inférieure du corps de recouvrement (22) ; une extrémité du corps de recouvrement (22) est pourvue d'un canal d'assemblage (222) ; une paroi interne d'une chambre de structure est pourvue d'un bras de liaison élastique (223) ; le bras de liaison élastique (223) est relié à un élément de limitation (2231) ; l'élément de limitation (2231) s'étend dans le canal d'assemblage (222) ; la surface externe du corps de recouvrement (22) est pourvue d'une pente de guidage d'écoulement (224) ; la pente de guidage d'écoulement (224) présente une structure de face incurvée profilée ; une arête de guidage d'écoulement I (2241) est formée au niveau d'un point haut de la pente de guidage d'écoulement (224) ; un ensemble de pulvérisation d'eau (3) est disposé au niveau d'un côté externe de l'accessoire (2) ; et l'ensemble de pulvérisation d'eau (3) est situé plus bas que l'arête de guidage d'écoulement I (2241).
PCT/CN2022/133599 2022-10-28 2022-11-23 Essuie-glace sans ossature de pulvérisation d'eau à faible résistance au vent WO2024087276A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211335358.0A CN115610375A (zh) 2022-10-28 2022-10-28 一种低风阻喷水无骨雨刮
CN202211335358.0 2022-10-28

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WO2024087276A1 true WO2024087276A1 (fr) 2024-05-02

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WO (1) WO2024087276A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115610375A (zh) * 2022-10-28 2023-01-17 江苏云睿汽车电器系统有限公司 一种低风阻喷水无骨雨刮

Citations (8)

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Publication number Priority date Publication date Assignee Title
CN202725362U (zh) * 2012-04-16 2013-02-13 浙江真奇汽车零部件有限公司 汽车挡风玻璃的洗涤喷嘴
CN103394425A (zh) * 2013-07-29 2013-11-20 博尔塔拉蒙古自治州兴旺科技有限责任公司 球形全方位喷头及所构成的喷雾机
CN108745700A (zh) * 2018-04-24 2018-11-06 贵州华烽汽车零部件有限公司 汽车雨刮器三眼喷嘴
CN111372825A (zh) * 2017-11-28 2020-07-03 罗伯特·博世有限公司 刮水臂喷射装置
CN112912287A (zh) * 2018-08-27 2021-06-04 特瑞科比利时股份公司 平片型风挡刮水器装置
CN113911071A (zh) * 2020-07-07 2022-01-11 罗伯特·博世有限公司 用于具有喷洒功能的玻璃刮擦器的刮擦器装置
DE102020208472A1 (de) * 2020-07-07 2022-01-13 Robert Bosch Gesellschaft mit beschränkter Haftung Wischervorrichtung für einen Scheibenwischer mit Sprühfunktion
CN115610375A (zh) * 2022-10-28 2023-01-17 江苏云睿汽车电器系统有限公司 一种低风阻喷水无骨雨刮

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202725362U (zh) * 2012-04-16 2013-02-13 浙江真奇汽车零部件有限公司 汽车挡风玻璃的洗涤喷嘴
CN103394425A (zh) * 2013-07-29 2013-11-20 博尔塔拉蒙古自治州兴旺科技有限责任公司 球形全方位喷头及所构成的喷雾机
CN111372825A (zh) * 2017-11-28 2020-07-03 罗伯特·博世有限公司 刮水臂喷射装置
CN108745700A (zh) * 2018-04-24 2018-11-06 贵州华烽汽车零部件有限公司 汽车雨刮器三眼喷嘴
CN112912287A (zh) * 2018-08-27 2021-06-04 特瑞科比利时股份公司 平片型风挡刮水器装置
CN113911071A (zh) * 2020-07-07 2022-01-11 罗伯特·博世有限公司 用于具有喷洒功能的玻璃刮擦器的刮擦器装置
DE102020208472A1 (de) * 2020-07-07 2022-01-13 Robert Bosch Gesellschaft mit beschränkter Haftung Wischervorrichtung für einen Scheibenwischer mit Sprühfunktion
CN115610375A (zh) * 2022-10-28 2023-01-17 江苏云睿汽车电器系统有限公司 一种低风阻喷水无骨雨刮

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